A construction-ready drawing package compliant with every Approved Document — Part A structure, Part B fire, Part L thermal, Part M accessibility — submitted to LABC or your approved inspector with structural calculations coordinated.
The national Approved Documents, decided by Enfield’s building control team or a registered approver within five weeks on a full plans application. Enfield’s planning side rarely extends its own clock — 6.7% against 34.5% across London — so submissions here need to be right first time.
| Requirement | Standard or period | Source |
|---|---|---|
| External wall, new thermal element | 0.18 W/m²K | Approved Document L, Volume 1 |
| Roof, new thermal element | 0.15 W/m²K | Approved Document L, Volume 1 |
| Windows and doors | 1.4 W/m²K | Approved Document L, Volume 1 |
| Kitchen extract with a cooker hood | 30 l/s | Approved Document F |
| Full plans decision | 5 weeks, or 2 months by agreement | Building Regulations 2010, reg 14 |
| Completion certificate | within 8 weeks of completion | reg 17 |
| Building regulations package | from £840 | our fixed fee |
Sources: Approved Documents L and F (Volume 1, 2021 editions, L incorporating the 2023 amendments); the Building Regulations 2010 (as amended), regulations 14 and 17; Enfield planning figures from MHCLG PS1 and PS2, twelve quarters to March 2026. Read at 1 September 2026. The package fee is our own published fixed fee.
A building regulations drawings package in Enfield, where the stock is largely Edwardian villas in Palmers Green and Winchmore Hill; 1930s semi-detached in Southgate; Victorian terraces in Edmonton; Metropolitan Green Belt north of the borough, is the full measured-survey-to-submission drawing set London Borough of Enfield needs in order to determine an application: existing and proposed plans, elevations and sections at 1:100 and 1:50, a location and site plan, and the supporting statements the case officer asks for.
Prepared and reviewed by the chartered technologist team at Architectural Drawings London — MCIAT chartered, £2m PI insured.Last reviewed 2026-08-03.


A construction-ready drawing package compliant with every Approved Document — Part A structure, Part B fire, Part L thermal, Part M accessibility — submitted to LABC or your approved inspector with structural calculations coordinated.
Housing stock in Enfield: Edwardian villas in Palmers Green and Winchmore Hill; 1930s semi-detached in Southgate; Victorian terraces in Edmonton; Metropolitan Green Belt north of the borough.
Character: Outer north London; Metropolitan Green Belt affects north; generally permissive elsewhere.
Plans, sections and elevations at 1:50 with full annotation and material specification.
U-values for walls, roof, floor and glazing; SAP or SBEM where required; compliance statement.
Chartered engineer sign-off on beams, pad foundations, lintels, roof structure.
Escape routes, compartmentation, smoke alarms, fire-rated construction detail.
Soil and vent pipe routes, MVHR coordination, EV charging (Part S).
Full Plans submission to Enfield Council Building Control or an approved inspector with inspections coordinated through to completion certificate.

Single planning or regs submission.
Planning + building regs + structural.
Listed, conservation, complex sites.
Move the controls for an indicative figure. It anchors your budget — it is not a quote. Every project is priced after a free survey.
Build costs are separate and quoted by your contractor. See our published fees.
Every Enfield postcode district we draw in, the stock that dominates it and the authority that validates a building regulations package there. Enfield fees below are the statutory England rates for 2026, not building regulations package estimates.
| Postcode | Area | Dominant stock | What it means for a building regulations package |
|---|---|---|---|
| EN4 | East Barnet / Cockfosters | Edwardian villas in Palmers Green and Winchmore Hill; 1930s semi-detached in Southgate; Victorian terraces in Edmonton; Metropolitan Green Belt north of the borough | East Barnet / Cockfosters is split at EN4. Either Barnet Council or Enfield Council can determine a building regulations package here, so the EN4 address is checked against both policies maps first. |
| N9 | Lower Edmonton | Victorian terraces, post-war estates | A building regulations package at an N9 address in Lower Edmonton is determined by Enfield Council under its own Local Plan policies for Lower Edmonton. |
| N13 | Palmers Green | Edwardian villas, 1930s semi-detached | N13 covers Palmers Green only; Enfield Council handles the building regulations package, and Palmers Green case officers apply the N13 conservation-area map. |
| N14 | Southgate | 1930s semi-detached, Edwardian villas | N14 covers Southgate only; Enfield Council handles the building regulations package, and Southgate case officers apply the N14 conservation-area map. |
| N18 | Upper Edmonton | Victorian terraces, post-war estates | A building regulations package at an N18 address in Upper Edmonton is determined by Enfield Council under its own Local Plan policies for Upper Edmonton. |
| N21 | Winchmore Hill | Edwardian villas, 1930s semi-detached | Winchmore Hill sits wholly inside N21, so Enfield Council validates every building regulations package submitted from an N21 address. |
| EN1 | Enfield Town / Bush Hill Park | Georgian fragments, 1930s semi-detached | EN1 covers Enfield Town / Bush Hill Park only; Enfield Council handles the building regulations package, and Enfield Town / Bush Hill Park case officers apply the EN1 conservation-area map. |
| EN2 | Enfield / Forty Hill | Georgian fragments, 1930s semi-detached | Enfield / Forty Hill sits wholly inside EN2, so Enfield Council validates every building regulations package submitted from an EN2 address. |
Roof pitch, wall build-up and plot depth change every few Enfield streets, and each one changes what a building regulations package can achieve at that address.
How designation changes a Enfield building regulations package: Enfield Council maintains 22 conservation areas, including Bush Hill Park, Forty Hill, Enfield Town. Inside any of them a Enfield building regulations package cannot rely on permitted development, and the route becomes a £548 householder application determined in 8 weeks rather than a £249 prior approval in 6 weeks. Gentleman's Row sets the tone for Enfield casework.
Article 4 and your Enfield building regulations package: Enfield Council has made no borough-wide direction, so permitted development for a building regulations package in Enfield generally survives outside Enfield conservation areas and listed curtilages. A Lawful Development Certificate at £274 is how a N9 owner records that a building regulations package was lawful.
What Enfield is built from: Edwardian villas in Palmers Green and Winchmore Hill; 1930s semi-detached in Southgate; Victorian terraces in Edmonton; Metropolitan Green Belt north of the borough. Outer north London; Metropolitan Green Belt affects north; generally permissive elsewhere. That mix decides the building regulations package route in Enfield more than the postcode does, and it is what a Enfield Council case officer reads first. A householder application costs £548 paid to Enfield Council direct, with 8 weeks to a decision once validated.
Sources for this Enfield building regulations package page: borough policies maps and conservation-area registers (2025–26), Royal Mail postcode district boundaries, the Town and Country Planning (Fees for Applications) (England) Regulations, the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended, and the Party Wall etc. Act 1996.
Direct answers to the questions Enfield homeowners ask every week about building regulations drawings.
Start a free quote →In Enfield, you can submit building regulations applications to either Enfield Council's in-house Building Control (LABC route) or to a private approved inspector. Both routes produce the same legally-valid completion certificate. We submit to whichever suits your project and builder.
The building regulations fee for a Enfield project is set by scope: a straightforward extension or loft is the baseline, while HMOs, basement conversions and flat splits need more detailing and coordination. Structural calculations are priced by the intervention — a single beam is far less than a full loft or underpinning package. See our fees.
Yes — every habitable loft conversion in Enfield (and across England) requires Building Regulations approval covering fire escape, floor structure, insulation and staircase. This is independent of whether you also need planning permission.
Part L of the Building Regulations sets minimum energy-efficiency standards — insulation, glazing U-values, air permeability, heating efficiency. New extensions in Enfield must meet the 2025 uplift (Future Homes Standard transition). We include full Part L calculations and a compliance statement in every Complete package.
Once submitted, Enfield Council Building Control reviews Full Plans within 5–8 weeks. Approved inspectors typically review in 2–4 weeks. On-site inspections run through the build — typically 6–10 visits depending on scope.
In Enfield, building regulations are required for: loft conversions, extensions, structural alterations, roof replacements, new openings in walls, and any work to a flat. Some minor works (like-for-like replacements, small porches) are exempt. We confirm at the free site visit.
A completion certificate from Enfield Council Building Control (or an approved inspector) confirms your works comply with Building Regulations. It is essential for selling or re-mortgaging — lenders and conveyancers require it. We manage the inspection sequence and close out sign-off as part of every Complete package.
Extensions and loft conversions in Enfield that change the building's energy characteristics require an updated EPC (or SAP/SBEM calculation as part of Part L compliance). We include Part L calculations in every Complete and Bespoke package.

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